Mathematical Modelling and the Determinationof Activation Energy and Moisture Diffusivity Effectivenss of Glass Shrimps (Palaemonetes Paludosus)

Abstract

Glass shrimp (Palaemonetes paludosus) tends to degrade after harvest due of high systemic moisture associated with it. To reduce degradation and enhance quality glass shrimps, convectional drying method was employed under six different temperatures, ranging from 50 - 100oC in multiples of 10oC. The dehydration values were inserted into about seven thin layer model; namely Henderson-Parbis, Page, Midilli, Newton, Logarithmic, Two-Terms, and finally Diffusion Approximation model to predict glass shrimp. The mechanism of these models was assessed using coefficient of determination (R2), reduced chi-square (X2) and root mean square error (RMSE). The emanating drying constants and coefficients, activation energy and moisture diffusivity effectiveness were investigated using a non- linear regression statistical conceptualization and linearized Fick’s second law equation method. Midilli model was the best models applicable for predicting the drying behaviour of the glass shrimp. The temperature dependent effective diffusivity values ranged from 1.85 x 10-9 – 2.95 x 10-9-m2/s with the related activation energy value of 30.5kJ/mol